Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial Timken M257248DGW - M257210

Описание

TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft. Specifications Series M257200 Cone Part Number M257248DGW Cup Part Number M257210 Design Unit Inch Cage Material Stamped Steel Note This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components. Dimensions d - Bore 12.0040 in D - Cup Outer Diameter 16.2460 in B - Double Cone Width 5.0625 in C - Cup Width 2.1250 in T - Bearing Width across Cups 5.0624 in Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.13 in r - Cup Backface "To Clear" Radius2 0.130 in da - Cone Frontface Backing Diameter 12.8 in Db - Cup Backface Backing Diameter 15.28 in Ab - Cage-Cone Frontface Clearance 0.14 in Basic Load Ratings C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 65000 lbf C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 437000 lbf C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 113000 lbf Ca90- Dynamic Thrust Rating (90 million revolutions)6 35500 lbf Factors K - Factor7 1.83 e - ISO Factor8 0.32 Y1 - ISO Factor9 2.12 Y2 - ISO Factor10 3.15 Cg - Geometry Factor11 0.169 Spacer Note Spacer shows standard nominal .01 radii, actual bearing may vary